Какие слова пишутся с артиклем the, а какие без: asia, sydney, amsterdam, russian federation, paris, south america, russia, usa, australia, egypt, oxford, africa, europe, omsk, canada, moscow, india, united kingdom of great britain and northern ireland with "the" without "the"

pack of cigarettesa day -about 500x-rayirradiationfor the year! temperatureof 700-900degreessmoldering cigarette! smoker's lungswith the experience -black,rottingmass.afterinhalingnicotine enters thebrainin 7seconds.nicotinecauses spasmof vessels,fromheremalnutritionoxygen to tissues.spasmof small vesselsmakes the skinaging.the hazards of smokingin the factthatthere isbad breath, yellowteeth,inflamedthroat,eyesturn redfrom theconstant irritationof smoke.

1. masha can skip better than lera.

2. it can  sit here.

3. we can danse and sing well.

it can  skip and sit.